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首页> 外文期刊>International Journal of Neuroscience >An experimental study on dynamic morphological changes and expression pattern of GFAP and synapsin i in the hippocampus of MTLE models for immature rats.
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An experimental study on dynamic morphological changes and expression pattern of GFAP and synapsin i in the hippocampus of MTLE models for immature rats.

机译:未成熟大鼠MTLE模型海马中GFAP和突触蛋白i动态形态变化及表达模式的实验研究。

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OBJECTIVE: To establish an animal model resembling human mesial temporal lobe epilepsy (MTLE); observe the dynamic changes of mossy fiber sprouting (MFS) and neuron loss in the hippocampus; and investigate the expression changes of Glial fibrillary acidic protein (GFAP) and Synapsin I in the hippocampus in immature rats. METHODS: MTLE models of immature rats were induced by lithium-pilocarpine. The surviving animals were continually monitored for 8 weeks. Nissl staining was used to observe the neuron loss and Timm staining was performed to evaluate MFS. Western blot (WB) and immunohistochemical methods were performed to detect the expression of GFAP and Synapsin I. RESULTS: Status epilepticus (SE) was successfully induced in 94.1% of the rats with a high mortality of 68.8%; 75% of the survived rats were observed for spontaneous recurrent seizures (SRS) which resembles the features of human MTLE. Expression levels of glial fibrillary acidic protein and Synapsin I fluctuated in correspondence with the different stages of MTLE development. CONCLUSION: We established an animal model depicting the human MTLE by using immature rats. GFAP and Synapsin I expressions are involved in MTLE development. Neuron loss and mossy fiber sprouting may have a role in epileptogenesis.
机译:目的:建立类似于人内侧颞叶癫痫(MTLE)的动物模型。观察海马苔藓纤维出芽(MFS)和神经元丢失的动态变化;观察未成熟大鼠海马神经胶质纤维酸性蛋白(GFAP)和突触蛋白I的表达变化。方法:锂-毛果芸香碱诱导未成熟大鼠的MTLE模型。持续监测存活的动物8周。 Nissl染色用于观察神经元丢失,而Timm染色用于评估MFS。结果:94.1%的大鼠成功诱发了癫痫持续状态(SE),病死率达68.8%,死亡率为68.8%;免疫印迹法(WB)和免疫组化法检测GFAP和突触素I的表达。观察到75%的存活大鼠自发性反复发作(SRS),类似于人MTLE的特征。胶质纤维酸性蛋白和突触蛋白I的表达水平随MTLE发育的不同阶段而波动。结论:我们通过使用未成熟的大鼠建立了描绘人MTLE的动物模型。 GFAP和Synapsin I表达参与MTLE的发展。神经元丢失和苔藓纤维发芽可能与癫痫发生有关。

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